A nurse is preparing to administer lidocaine 50 mg IV bolus. Available is lidocaine 200 mg/mL. How many mL should the nurse administer (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A) Ask the client to remain in a side-lying position with the affected ear down for several minutes after instillation:
While this position helps ensure the medication remains in the ear canal, it is not as critical as ensuring the medication is at the correct temperature to avoid discomfort. The client should be informed to remain in this position if recommended by the medication instructions.

B) Pull the client's pinna down and back prior to instillation:
Pulling the pinna down and back is appropriate for children under 3 years of age. For clients over 3 years, the pinna should be pulled up and back to straighten the ear canal for effective delivery of the medication.

C) Press a cotton ball into the client's ear canal after instillation:
Pressing a cotton ball into the ear canal is not generally recommended as it can cause discomfort and potentially prevent the medication from being absorbed properly. It's better to leave the ear open after instillation unless otherwise directed by specific instructions.

D) Warm the medication to room temperature before administration:
Warming the medication to room temperature is an important step because it helps prevent discomfort or dizziness that can occur if the medication is too cold. This action enhances patient comfort and ensures effective administration of the medication.

A) Ask the client to inhale the medication quickly for 1 second:
The client should inhale the medication slowly and deeply, not quickly. A rapid inhalation can reduce the effectiveness of the medication as it may not reach the deeper parts of the lungs effectively.

B) Ask the client to hold their breath for 2 seconds after inhalation:
The client should hold their breath for about 10 seconds after inhalation to allow the medication to settle in the lungs and be absorbed. Holding the breath for just 2 seconds is typically insufficient for optimal medication delivery.

C) Shake the MDI prior to administration:
Shaking the MDI before use is important to ensure that the medication is properly mixed and delivered in the correct dose. Failure to shake the MDI can result in an uneven distribution of medication.

D) Wash the MDI canister in warm water after each use:
The MDI canister should not be washed frequently, as this can affect the device's function and lead to potential contamination. The canister should be cleaned as per the manufacturer’s instructions, typically every few days or as needed.